CN102693928A - Non-contact type suction cup - Google Patents

Abstract

A non-contact type sucker comprises an air guide seat and an air disturbing seat; the air guide seat is provided with an adsorption surface, a gradually reducing groove and an air inlet flow channel, the adsorption surface is positioned below the air guide seat, the gradually reducing groove is arranged from the adsorption surface to the inside of the air guide seat in a mode of reducing the aperture gradually, and the air inlet flow channel is communicated with the gradually reducing groove; the air disturbing seat is covered in the reducing groove, an air chamber communicated with the air inlet flow passage is defined by the air disturbing seat and the reducing groove, and at least one air outlet gap is formed between at least one edge of the air disturbing seat and the reducing groove; when external air enters the air chamber from the air inlet flow channel, the external air is ejected from the air outlet gap along a wall surface of the tapered groove.

Description

Non-contact suction cup

technical field

The invention relates to a sucker structure, in particular to a non-contact sucker.

Background technique

Since semiconductor technology and many manufacturing industries need to move processing objects during production, how to absorb and transport processing objects has become an important issue. In the industry, the more mainstream method is to use suction cups to absorb processing objects.

In the past, the simplest suction cup was used to absorb the processing object in the way of suction. The principle of this method is simple. However, during the adsorption process, the suction cup will directly contact the processing object. For some relatively fragile processing objects such as wafers and solar energy plate, it is easy to cause the adsorbed processing object to be damaged due to bending or collision.

In order to improve the shortcomings of the contact sucker, the existing technology began to develop a non-contact sucker of the air outlet type, such as Japanese Patent No. JP, 2009-073646, A discloses a non-contact sucker, which is a combination of the main disc body and the air jet Formed, the upper part of the main disc body is provided with an air intake channel, and many fine holes are drilled around the air jet part. When the air jet part is combined with the main disc body under the main disc body, it can be used. The gas is poured into the air intake channel above the main disk body, and the gas will be ejected from the pores around the air jet towards the outside of the bottom of the non-contact suction cup, and thereby generate vacuum suction at the center of the bottom of the non-contact suction cup to absorb the processing object.

However, this structure also has many disadvantages. Firstly, the air intake from above the main disc body will greatly increase the thickness of the non-contact suction cup, so the selection of the interface is easily limited, and the use of surrounding space is also limited. In addition, due to the need for drilling, the air-jet parts are more difficult to process, and the manufacturing cost will increase accordingly.

Contents of the invention

Technical problem and purpose that the present invention intends to solve:

Therefore, the main purpose of the present invention is to provide a non-contact suction cup, which uses the gap formed between the air guiding seat and the air disturbing seat to discharge air, so no additional drilling is required to make the air jet outlet during manufacture.

The technical means of the present invention to solve the problem:

A non-contact suction cup includes an air guide seat and an air disturbing seat; the air guide seat has an adsorption surface, a tapered groove and an air inlet flow channel, the adsorption surface is located below the air guide seat, and the tapered groove starts from the The adsorption surface is opened in a manner that the aperture is tapered toward the inside of the air guide seat, and the air inlet flow channel is connected with the tapered groove; There is an air chamber in the channel, and there is at least an air outlet gap between at least one edge of the air disturbing seat and the tapered groove; wherein, when an external air enters the air chamber from the air inlet channel, the external air passes through the air outlet gap along the One wall surface of the tapered groove is sprayed out.

In a preferred embodiment of the present invention, the adsorption surface further has at least one anti-collision pad, and preferably the anti-collision pad is made of a sponge material.

In a preferred embodiment of the present invention, the air disturbing seat is locked to the air guiding seat by at least one screw.

In a preferred embodiment of the present invention, the inlet air passage communicates with the radial direction of the tapered groove.

In a preferred embodiment of the present invention, the air disturbing seat is a square structure.

In a preferred embodiment of the present invention, the air disturbing seat has an air disturbing surface facing the tapered groove, and the air disturbing surface is gradually concave inward from the edge.

The present invention compares the effect of prior art:

Compared with the existing non-contact suction cup, the non-contact suction cup of the present invention utilizes the gap generated when the air-guiding seat and the air-disturbing seat are combined to discharge air, so no additional drilling is required to make the air-jet outlet, and the structure is relatively simple. The cost is also low, and the air inlet channel can be arranged in the radial direction of the tapered groove, so the thickness of the non-contact suction cup will not be increased, and the goal of thinning can be achieved.

The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.

Description of drawings

Fig. 1 is an inverted exploded view of the non-contact suction cup according to the first embodiment of the present invention;

Fig. 2 is a sectional view along the A-A tangent line of Fig. 1;

Fig. 3 is a schematic diagram of the air outlet of the non-contact suction cup of the first embodiment;

Fig. 4 is an inverted exploded view of the non-contact suction cup according to the second embodiment of the present invention;

Figure 5 is a sectional view along the B-B tangent line of Figure 4; and

Fig. 6 is a schematic diagram of the air outlet of the non-contact suction cup of the second embodiment.

Among them, reference signs

Non-contact suction cup 100

Air seat 11

Adsorption surface 111

Tapered groove 112

Inlet flow channel 113

Spoiler seat 12

Edge 121

Disturbance surface 122

screw 13

Air chamber H1

Air outlet gap G1

External gas F1

Non-contact suction cup 200

Air seat 21

Adsorption surface 211

Tapered groove 212

Inlet flow channel 213

Air spoiler 22

Edge 221

screw 23

Crash pad 24

Air chamber H2

Air outlet gap G2

Detailed ways

The invention relates to a suction cup, especially a non-contact non-contact suction cup. A preferred embodiment is listed below to illustrate the present invention, but those skilled in the art know that this is only an example, not intended to limit the invention itself. The content of this preferred embodiment is described in detail as follows.

Please refer to Fig. 1, Fig. 2 and Fig. 3, Fig. 1 is an inverted exploded view of the non-contact suction cup of the first embodiment of the present invention, Fig. 2 is a sectional view along the A-A tangent line of Fig. 1, Fig. 3 is a non-contact sucker of the first embodiment Schematic diagram of the air outlet of the contact suction cup. The non-contact suction cup 100 includes an air guiding seat 11 and an air disturbing seat 12 .

The air guide seat 11 has an adsorption surface 111, a tapered groove 112 and an air inlet channel 113, the adsorption surface 111 is located below the air guide seat 11, and the tapered groove 112 is from the adsorption surface 111 toward the air guide The interior of the seat 11 is opened in a manner of tapered aperture, and the air inlet channel 113 communicates with the tapered groove 112 .

The air disturbing seat 12 is covered in the tapered groove 112, and defines an air chamber H1 communicating with the inlet air passage 113 with the tapered groove 112, and at least one edge 121 of the air disturbing seat 12 is in line with the tapered There is at least one air outlet gap G1 in the groove 112, and in this embodiment, four air outlet gaps G1 are reserved for illustration; wherein, when an external air F1 enters the air chamber H1 from the inlet flow channel 113, the external air F1 The gas is ejected from the air outlet gap G1 along a wall surface of the tapered groove 112 , thereby generating vacuum suction at the center of the suction surface 111 .

Preferably in this embodiment, the air disturbing seat 12 can be locked on the air guide seat 11 by at least one screw 13, and the air inlet channel 113 can be connected to the radial direction of the tapered groove 112, Of course, it can also be connected to the bottom end of the tapered groove 112 , but when the interface is installed, the thickness of the non-contact suction cup 100 will increase accordingly.

In addition, the air disturbing seat 12 has an air disturbing surface 122 facing the tapered groove 112, and the air disturbing surface 122 may be concave inwardly from the edge 121, so that the air can be ejected in the external air F1. Before the gap G1, the external air F1 is accelerated, and the generation efficiency of vacuum suction is enhanced.

Of course, although the air guide seat 11 and the air disturbance seat 12 in the first embodiment of the present invention are all a square structure, they do not have to be made into a square structure to generate vacuum suction. The shapes of the air guide seat 11 and the air disturbance seat 12 It does not need to be the same, and other shapes can also generate vacuum suction smoothly. The only thing to emphasize is that when the air disturbance seat 12 is made into a square structure, it can make the non-contact suction cup have a stronger vacuum suction under the same air intake .

Please refer to Fig. 4, Fig. 5 and Fig. 6, Fig. 4 is an inverted exploded view of the non-contact suction cup of the second embodiment of the present invention, Fig. 5 is a sectional view along the B-B tangent line of Fig. 4, Fig. 6 is a non-contact sucker of the second embodiment Schematic diagram of the air outlet of the contact suction cup. The non-contact suction cup 200 also has an air guiding seat 21 and an air disturbing seat 22, and can also cover and fix the air disturbing seat 22 on the air guiding seat 21 with screws 23 to form an air chamber H2. The air guiding seat 21 also has The adsorption surface 211, the tapered groove 212 and the air inlet channel 213 can form an air outlet gap G2 with the edge 221 of the air disturbing seat 22 when the air disturbing seat 22 is combined. The main difference from the first embodiment is only in this embodiment The air guiding seat 21 and the disturbing air seat 22 are all circular structures, and there is no difference in the principle of action during use.

In addition, in order to prevent the non-contact suction cup 200 from colliding with the non-contact suction cup 200 due to other unstable factors during the process of absorbing the processing object, the suction surface 211 can also be provided with at least one anti-collision pad 24. Generally speaking, The anti-collision pad 24 of sponge material just can reach very good effect.

Based on the above, compared with the existing non-contact non-contact suction cup, the non-contact suction cup of the present invention uses the air outlet gap generated when the air guiding seat and the air disturbing seat are combined, so no additional The air jet outlet is made by drilling, the structure is relatively simple, not only easy to assemble, but also the production cost is low. In addition, the air inlet channel can be set in the radial direction of the tapered groove, so the thickness of the non-contact suction cup will not be increased, and the thickness can be realized. The goal.

Certainly, the present invention also can have other multiple embodiments, without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and deformations according to the present invention, but these corresponding Changes and deformations should belong to the scope of protection of the appended claims of the present invention.

Claims (7)

1. a contactless sucker is characterized in that, comprises:

One air guiding base has: an adsorption plane, a convergent groove and are gone into flow channel, and this adsorption plane is positioned at the below of this air guiding base; This convergent groove is offered towards the mode that this air guiding base inside is the aperture convergent from this adsorption plane; This is gone into flow channel and is connected with this convergent groove; And

One disturbs the gas seat, is covered in this convergent groove, goes out to be communicated with the air chamber that this goes into flow channel with this convergent slot definition, and there are at least one gap of giving vent to anger in this at least one edge and this convergent groove of disturbing the gas seat;

Wherein, go into flow channel when an extraneous gas from this and get into this air chamber, this extraneous gas is from this wall ejection of gap along this convergent groove of giving vent to anger.

2. contactless sucker according to claim 1 is characterized in that this adsorption plane also has at least one bumper.

3. contactless sucker according to claim 2 is characterized in that, this bumper is a sponge material.

4. contactless sucker according to claim 1 is characterized in that, this is disturbed the gas seat and utilizes at least one screws in this air guiding base.

5. contactless sucker according to claim 1 is characterized in that, this is gone into flow channel and is communicated in radially locating of this convergent groove.

6. contactless sucker according to claim 1 is characterized in that, this disturbs the gas seat is a square structure.

7. contactless sucker according to claim 1 is characterized in that, this is disturbed the gas seat and has towards one of this convergent groove and disturb the gas face, and it is gradually recessed inwardly from this edge that this disturbs the gas face.

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